Penetration of UV-A, UV-B and blue light through the leaf trichome layers of two xeromorphic
plants, olive and oak, measured by optical fibre microprobes.
Based on these figures we can conclude that plants forming population No 3, have a more xeromorphic
Burrows G E (2001) Comparative anatomy of the photosynthetic organs of 39 xeromorphic
species from subhumid New South Wales, Australia.
In Ceara, the species has been recorded in Caatinga areas in the municipalities of Crato and Russo, in open xeromorphic
vegetation, as well as sub-humid and deciduous formations at between 15 and 900 m a.s.l.
Edaphic conditions can further accentuate the effects of drought; for example, in the south, plants on sand and limestone-derived soils can exhibit xeromorphic
adaptations that are characteristic of climax forms of vegetation (Moat and Smith 2007).
brevifolia are similar to those of other Bromeliaceae species; however, their xeromorphic
and hydromorphic characteristics constitute important adaptations to the periods of both low and high water in the rheophytic environment, making their survival possible under these unique environmental conditions.
species take place in this zone: Artemisia,, Testuca sulcata (Hack.) Nym., Stipa sapillata L., Ceratocarpus are-narius L.; on the slopes of the hills--Silene multiflora Pers., Thymus serpyllum L.
Drought favors oak recruitment and dominance because relative to other deciduous hardwood species, oaks have deep roots, xeromorphic
leaves, and an ability to adjust osmotically, conferring drought tolerance (Bahari et al., 1985; Abrams, 1990; Dickson and Tomlinson, 1996).
There are some decomposing fungi like genera Aureobasidium, Candida, Rhodoturula, Sporobolomyces which are hydromorphic and there are some xeromorphic
genera like Mortiella and Trichoderma while different species of Aspergillus and penicillium has been detected in both soil and water environment .
Small body size, rhizomatous habit, phytotelm shoot, foliar absorptive trichomes and specific adaptations in their metabolism (CAM metabolism), succulence and other xeromorphic
features are characteristics that account for the inordinate success of Bromeliaceae in diverse, often demanding, habitats (BENZIG, 2000).